Ore-leaching machine



(No Model.) 2 Sheets-Sheet 1. P. L. GIBBS. ORE LEAGHING MACHINE.

No. 456,323. Patented July 21, 1891.

BY 9 %mmm M ATTORNEY.

2 Sheet-Sheet 2.

P. L. GIBBS. ORB LEAGHING MACHINE.

No. 456,323. Patented July 21, 1891.

(No Model.)

I UNITED STATES PATENT OFFICE.

PIERRE GIBBS, or CLINTON, IOWA.

O'RE- LEACH Ne MAC 1 N E.

SPECIFICATION forming part of Letterslatent No. 456,323, dated July 21,1891. Application filed January 77,1891 Serial No. 377,029. (No model.)

Similar letters refer to similar parts through- To aZZ whom it mayconcern: v

Be it known that I, PIERRE L. GIBBS, a citizen of the United States,residing at Clinton, in the county of Clinton and State of Iowa, haveinvented. certain new and useful I'mprovements in Ore-Leaching Machines;andI do declare the following to be a full, clear, and

exact description of the invention,such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

I My invention has reference to ore-leaching machines in which arotating annular series of ore-receptacles pass successively under anore-vat containing the crushed ore in a solution to receive theirrespective contents or to be otherwise filled and todischarge thefiltrate during their transit into a suitablyplaced discharging conduitor launder and at a predetermined point in their orbital movement andautomatically discharge the resid uum. 1

The objects of my improvement are, first, to provide asuitably-suspended vat to receive the ore in a solution or dry orroasted ore and adapted by suitable openings in the bottom thereof tooptionally discharge said contents; second, to provide a series ofleaching-vats to pass successively under said primary vat andrespectively receive from the latter a proper quantity of its contents;third, to provide suitable mechanism for supporting and progressing saidsecondary vats; fourth,

to provide a conduit or launder to receive and carry off the filtratefrom said leaching or secondary vats, and, fifth, to afford facilitiesto automatically discharge the residuum from said leaching-vatspreparatory to their refilling. I attain these objects by the mechanismillustrated in the accompanying drawings, in Which- Figure 1 is a planof my invention. Fig. 2 is an elevation thereof, partly in section. Fig.3 is a partial cross vertical section in the line was of Fig. 1. Fig. 4.is a detail of the automatic trip for discharging the residuumaforesaid.

out the several views.

B is the primary vat, suitably suspended from an upper floor or itsequivalent and adapted to receive the ore in a solution,which can bedelivered into its upper end in any suitable mode. The bottom. of thevatB has a converging bottom, and at its lower extremity is providedwith a transverse series of openings 1, adapted to be optionally openedor closed by a transverse slide d, having a corresponding series ofopenings 2, adapted to register with the openings 1 and operated .by alever c or other suitable means.

A A are an annular series of leaching-vats supported cen trallyrespectively upon a transverse hinge E, seated upon a circular plate 0,

which latter is provided on its lower surface I with a sufficient numberof peripherallygrooved carrying-wheels G, adapted to be supported uponand traverse a circular track H.

Near the bottom of each vat A is placed the leaching-cloth 3, of anysuitable quality,supported a proper distance above the bottom of saidvat by transverse strips 4, provided with transverse openings, thuspermitting the fil-' trate to collect between the leaching-surface 3 andthe permanent bottom 5 of the vat A and escape from the latter throughthe exit a.

A suitable stationary discharging-launder I, of a curved formation,extends entirely around under the vats A, having itshighest elevation atone central locality and descending therefrom in opposite directions to'its point of discharge.

b" are attached to the inner end of each vat A, near the bottom thereof,and extend inwardly horizontally to inclose between them the outer edgeof a circular plate F, suitably .85 An upper engaging plate I) and lowerone supported horizontally to afford in the rotation of the vats A meansfor retaining said vats in their normal position. In one portion of theplate F is located a rock-shaft'G, provided with theoutwardly-extendingnormal guide-surface F and an inwardly and outwa'rdlyextendingbow 7. The purpose of this provision is to optionally rock thesegment F into the same plane as the plate F, so as to make the lattercontiguous, or to rock said too segment below the plane of said plateand substitute in said interval the how '7, which by engaging andraising the projections l) I) will tilt the vat A outward when it isdesired to discharge the residuum therefrom, as shown in Fig. 3.

To assist in holding the strainer 3 in position, there-is suitablyfastened over the upper surface thereof the longitudinal slats 8.

The plate 0 is provided peripherally with the external gear D, adaptedto be engaged and actuated by the pinion P, the latter being driven inany suitable mode.

L and M are liquid-dischargers suspended at suitable intervals above theline of transit of the vats A, and are intended to afford means ofdischarging liquid of any character into the contents of the vats Aduring the process of leaching, and N is a similarliquid- (lischargersuspended over the point of discharge of the residuum to assist inwashing out the latter when the vat A is in the tilted position shown inFig. 3.

K is a discharge-trough suitably placed under the point of saiddischarge and adapted to receive and carry off the residuum aforesaid.

A joint-cover O is suitably hinged on the side of each vat A in positionto extend over the adjacent side of the next succeeding vat, and thuspreclude a dropping of the material from the vat B between the vats A oron the edges thereof in the passage of the vats A under the vat B. Thecover 0 is preferably placed on that side of the vats A which is last toapproach the vat B, so that the tilting vat may raise and hold edgewisethe cover 0 on the preceding vat and carry upward its own cover.

The operation of my invention is as follows: After the ore is crushedand put in the solution, either originally in the vat B or transferredthereto from other vessels, the power is applied to the gear D throughthe medium of the pinion I, and the vats A thereby rotated in successionunder the vat B, receiving in transit from the latter such amount of itscontents as may be desired, and during the cycle of rotation of each vatthe filtrate is permitted to escape into and through the conduits orlaunder 1. Sometimes it is advantageous to introduce some peculiarsolution during the process of leaching into the mass within the vats A,and this can be delivered through the inlets L or M, .or said inlets maybe utilized to furnish additional water. The vats A may be constructedto contain such quantity as maybe desired, and the rapidity of movementof said vats may be varied at will. If one cycle of rotation of the vatsA shall sutliciently exhaust the filtrate, the bow 7 can be adjusted toengage the projections Z) and l) at each revolution of the vats A, andthereby automatically discharge the residuum therefrom in succession, orif more than one revolution be desired the movable segment F can bethrown intothe interval otherwise occupied by the how 7, and thuscomplete the continuity of the plate F until such time as it may bedesired to discharge the residuum as aforesaid, egress of the contentsof the vat B being meanwhile suspended by closing the openings 1therein. As the launder I extends entirely around the circular vats A,the leaching may proceed even while said vats are stationary. As thehinge E is under the center of gravity of the vats A, but one track isrequired, and the automatic tilting of the vats made feasible withoutintermitting their support on said track.

Any number of vats A may be used, and my invention may be applied to anyoperation in which leaching or filtering is involved. The vats A may beloaded by hand and the vat B be dispensed with.

V \Vhat I claim as my invention, and desire to secure by Letters Patentof the United States, is-

1. The combination of a movable plate 0, suitably supported uponcarrying-wheels (Jr and provided with a gear D, a positivelydrivenpinion P, engaging said gear, a series of leaching-vats A, pivotallyseated on said plate and providedwith a suitably-supportedfiltering-surface 3 and with transverse strips 4, having transverseopenings, and with exit a and a launder I, placed beneath and inthe lineof movement of said vats in position to receive the filtrate therefrom,substantially as shown, and for the purpose described.

2. The combination of a movable plate 0, suitablysupported uponcarrying-wheels G and provided with a gear D, a rotating pinion 1,adapted to engage and actuate said gear, a series of leaching-vats A,pivotally seated on said plate and provided with a filteringsurface 3and filtrate-discharge a and with projections 73 and Z), a launder I,placedbeneath and in the line of movement of said vats in position toreceive the filtrate therefrom, and plate F, provided with bows 7 in thepath of said vats for automatically discharging the residuum from saidvats, for the purpose specified.

3. The combination of the plate 0, provided with external gear D andsuitably supported and carried upon a track, means for rotating saidgear and plate, a series of leaching-vats A, pivotally seated on plate Cand provided with projections b and 1), plate F, adapted to be engagedby said projections, the launder I, seated beneath said vats, and bows 7in plate F, adapted to tilt said vats and discharge the remainingcontents thereof, substantially as shown, and for the purpose described.

l. The combination of the plate C, movably supported, a series ofleaching-vats A, each provided with a leaching-surface 3 and openin g aand pivotally seated on said plate, a stationary vat B, placed inposition to discharge its contents successively into said vats A a ear Dformed on said )late 0, a rotatvats substantiall as shown and for theur- 1m llllOn P ada ted to en a e and actuate ose described. 10

s p b b p said gear, a launder I, placed under and 1n IntestimonywhereofIaffix myslgnature 1n position to receive the filtratefrom said vats presence of two witnesses.

during their movement, means,substantia1ly PIERRE L. GIBBS. as shown,for automatically tilting said vats, Witnesses:

and 1iquid-disehargers L, M, and K, suitably JOHN G. MANAHAN,

supported above theline of movement of said ADDA E. WVARD.

